DIYbanter - View Single Post

wrote:
How many connection points on the tank? Presumably feed (with a ball
valve), outlet and an overflow. Water level is probably below 2 of
those, so either the outlet leaks, the coupling to the ball valve leaks
(which is presumably full mains pressure) or the tank is split. Must be
a substantial leak to fuse the electrics. I'd expect a pvc tank to
deform considerably before it would split, but it might cause a leak
round the tank fitting if it's been badly placed.

Yes, feed, overflow and the outlet to the cylinder.

Of particular interest is that with an empty F&E (she turned the inline
valve off when she found the leak), I added a small amount of water and
the leak *appeared* to start immediately - although this could possibly
be due to the weight of the tank squeezing water from the plywood - I
simply don't know.

I'm tempted to move the tank into the attic - a few quid for some copper
pipe is worth it for the ease with which I could replumb this rather
than work in such a tight-squeeze area.